https://github.com/rob-blackbourn/bareasgi-cors

CORS support for bareASGI
https://github.com/rob-blackbourn/bareasgi-cors

asgi asyncio bareasgi bareasgi-cors cors cors-support python web

Last synced: 4 months ago
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CORS support for bareASGI

• Host: GitHub
• URL: https://github.com/rob-blackbourn/bareasgi-cors
• Owner: rob-blackbourn
• License: apache-2.0
• Created: 2019-01-27T08:55:46.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2023-07-20T11:13:20.000Z (almost 3 years ago)
• Last Synced: 2025-08-25T05:58:44.818Z (10 months ago)
• Topics: asgi, asyncio, bareasgi, bareasgi-cors, cors, cors-support, python, web
• Language: Python
• Homepage: https://rob-blackbourn.github.io/bareASGI-cors/
• Size: 1.49 MB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# bareASGI-cors

CORS support for [bareASGI](http://github.com/rob-blackbourn/bareasgi) (read the

[docs](https://rob-blackbourn.github.io/bareASGI-cors/))

## Usage

Simply create the `CORSMiddleware` class and put is as the first middleware.

```python

import json

import uvicorn

from bareasgi import (

    Application,

    text_reader,

    text_writer

)

from bareasgi_cors import CORSMiddleware

async def get_info(request):

    text = json.dumps(request.info)

    return HttpResponse(200, [(b'content-type', b'application/json')], text_writer(text))

async def set_info(request):

    text = await text_reader(request.body)

    data = json.loads(text)

    request.info.update(data)

    return HttpResponse(204)

# Create the CORS middleware class

cors_middleware = CORSMiddleware()

# Use the CORS middleware as the first middleware.

app = Application(info={'name': 'Michael Caine'}, middlewares=[cors_middleware])

app.http_router.add({'GET'}, '/info', get_info)

app.http_router.add({'POST', 'OPTIONS'}, '/info', set_info)

uvicorn.run(app, port=9010)

```

## The POST method

In the above example an OPTION method is included with the POST. This

is always required with a POST as a browser will try first with an OPTION.